Vocabulary a time expressions complete the sentences with for or since. i've lived here i i've had this pen i was a child. 2 he's been married last june. 3 they've known each other a long time. 4 she's studied french literature three years. 5 you've worn that sweater every day christmas! school subjects complete the sentences with a school subject. i if you you learn about what happened in the past. 2 if you you learn about countries, mountains, rivers, 3 if you study you learn to add, multiply, etc. if you study you learn physics and chemistry 4 if you study you learn about plants and animals